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| General Car / Scooby Chat General chat, car related. Threads posted in here may well be re-directed to a more relevant home. |
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#1
30-09-2014, 04:21 PM
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Wheel offset
I have just tried doing my wheel offset and it comes out as 63.5 if I round the measurement to the nearest inch or 64.77 if I use the exact measurement am I doing something wrong as that seems to be a big offset .
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Maintained by Hypertech and Mapped by Andy Forrest 1998 UK Turbo , 1998 Terzo , 1997 JDM Type R the money pit , 2004 black WRX STI Type UK , 2004 blue FSTI 
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#2
30-09-2014, 05:13 PM
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Is the wheel flat on the ground when measuring or resting on the alloy.
Ideally measure alloy lip to lip then inner lip to hub face or tyre outer face to tyre inner face then tyre inner face to hub face (all in mm)
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#3
30-09-2014, 05:32 PM
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Quote:
If I don't devide in 2 just minus the two I now get et 33.02 . Im defo going bonkers .
__________________
Maintained by Hypertech and Mapped by Andy Forrest 1998 UK Turbo , 1998 Terzo , 1997 JDM Type R the money pit , 2004 black WRX STI Type UK , 2004 blue FSTI
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#4
30-09-2014, 05:48 PM
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Measure full width = W
Divide W by 2 = X Measure from hub face to rear edge = Y Subtract Y from X = Offset Alternatively find the 'ET' stamped on the rear of the wheel 
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#5
30-09-2014, 06:01 PM
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Quote:
Is it measure from wheel spoke on inside to rim edge as that's what I did .
__________________
Maintained by Hypertech and Mapped by Andy Forrest 1998 UK Turbo , 1998 Terzo , 1997 JDM Type R the money pit , 2004 black WRX STI Type UK , 2004 blue FSTI
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#6
30-09-2014, 06:25 PM
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Quote:
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#7
30-09-2014, 06:40 PM
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Done exactly what the video showed and no stamp on the back but will double check again
__________________
Maintained by Hypertech and Mapped by Andy Forrest 1998 UK Turbo , 1998 Terzo , 1997 JDM Type R the money pit , 2004 black WRX STI Type UK , 2004 blue FSTI
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#8
30-09-2014, 07:01 PM
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An offset of 63 will have the wheel/tyre rubbing/fowling the strut.
Mine is very close on an 8 inch ET51. So close that a 235 fowls but a 225 clears.
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#9
30-09-2014, 07:27 PM
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Quote:
__________________
Maintained by Hypertech and Mapped by Andy Forrest 1998 UK Turbo , 1998 Terzo , 1997 JDM Type R the money pit , 2004 black WRX STI Type UK , 2004 blue FSTI
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#10
01-10-2014, 02:31 AM
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Just watch the video again it looks like she is taking the first measurement from the floor to the bottom edge of the piece of would as there is no way there is 5 in difference between the spoke and the height of the wheel flange .
__________________
Maintained by Hypertech and Mapped by Andy Forrest 1998 UK Turbo , 1998 Terzo , 1997 JDM Type R the money pit , 2004 black WRX STI Type UK , 2004 blue FSTI
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#11
01-10-2014, 08:33 AM
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She is right.
Because she measures floor to wood this gives an overall width. You are trying to find the offset from the centreline therefore it doesn't matter how thick the tyres are the centreline will always be in the same place if you measure tyre edge (floor) to tyre edge (wood edge).
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#12
03-10-2014, 09:42 AM
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With a lot of searching went on the PRO R website my alloys are 18x7.5 5x100 ET 53 I might get that stamped on before I sell them as pick up my ST2's on Sunday canni wait to get them .
__________________
Maintained by Hypertech and Mapped by Andy Forrest 1998 UK Turbo , 1998 Terzo , 1997 JDM Type R the money pit , 2004 black WRX STI Type UK , 2004 blue FSTI
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